Setup guide

Installing the Motherboard

AUDIO1: Front Panel Audio header

This header allows the user to install auxiliary front-oriented microphone and line-out ports

for easier access.

AUXIN1: Auxiliary In header

This connector is an additional line-in audio connector. It allows you to attach a line-in

cable when your rear line-in jack is set as line out port for 4-channel function.

1 AUD_MIC Front Panel Microphone input signal

2 AUD_GND Ground used by Analog Audio Circuits

3 AUD_MIC_BIAS Microphone Power

4 AUD_VCC Filtered +5V used by Analog Audio Circuits

5 AUD_F_R Right Channel audio signal to Front Panel

6 AUD_RET_R Right Channel Audio signal to Return from Front Panel

7 REVD Reserved

8 Key No Pin

9 AUD_F_L Left Channel Audio signal to Front Panel

10 AUD_RET_L Left Channel Audio signal to Return from Front Panel

1 AUX_L AXU In left channel

2 GND Ground

3 GND Ground

4 AUX_R AXU In right channel

CDIN1: Analog Audio Input connector

Pin Signal Name Function

1 CD in_L CD In left channel

2 GND Ground

3 GND Ground

4 CD in_R CD In right channel

Pin Signal Name Function